Iowa Poll: Immigration, Common Core problems for Jeb Bush

Former Florida governor Jeb Bush autographs his new book "Immigration Wars: Forging an American Solution" before speaking at the Reagan Library about his new book on March 8, 2013 in Simi Valley, California.(Photo: Kevork Djansezian/Getty Images)

Jeb Bush has major problems in Iowa. His vocal support for immigration reform and the national education standards known as Common Core bother many in the state's Republican base.

A Bloomberg Politics/Des Moines Register Iowa Poll of likely participants in the state's 2016 Republican caucuses shows nearly two-thirds consider Bush's positions on those issues to be a deal-killer, or something they'd consider when deciding whether to support him. Just 32 percent have no problem with those stands.